First time posting. My mallard duck seems huge. I'm starting to think he/she is a Rouen? The guy at the feed store told me he thought snowy mallard but I'm not so sure about that... Here are a couple pictures, the chicks and duck are the same age, about 6 weeks. Also if anyone has any clue on the sex thank you! Edited - OK I initially asked if this duck was Mallard or Rouen. After looking at pictures it does seem like its neither. I would love to know what type of duck I have, can anyone help me?